Childproof the room you and your baby sleep in, and keep the door closed or locked so Baby cannot enter other rooms. Though you most likely will awaken if your baby gets out of bed, you must be prepared for the possibility of his escape!
If you do not feel comfortable sleeping with Baby by your side, consider a side-car arrangement, or simply placing Baby’s own bed in your room. Your baby receives many benefits of co-sleeping from sleeping close to you.